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Fed [463]
2 years ago
14

Plugin y=-5 into either equation and solve for x -6x-8y=-20 or x+y=5

Mathematics
2 answers:
Ludmilka [50]2 years ago
7 0

Answer:

x = 10

Step-by-step explanation:

If you substitute into the second one which is the relatively easier one. You would get:

x + (-5 ) =5

x =5 +5

x= 10

nalin [4]2 years ago
3 0

Answer:

x = 10

Step-by-step explanation:

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Answer:

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7 0
3 years ago
If you need how many days between two dates what function should be used
Mariana [72]
You have to do this piecemeal so there isn’t a single formula. The best way is to convert each date using a common frame of reference. Dates before October 1582 used a different calendar. Also the distance between leap years varies. It’s normally 4 years but it can be 8 years. For example, 2100 is not a leap year but 2096 and 2104 are both leap years. Similarly 1896 and 1904 but not 1900. Before October 1582 leap years occurred exactly 4 years apart.
Your next problem is to work out the day number from the beginning of the year. On average there are between 30.4 and 30.5 days in a month, but this is only an approximation because the length of each month varies. So to aid in the calculation you need a table which gives you the day number for every date in the year, and the table is different for leap years.
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6 0
4 years ago
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